The Church of England is being urged to pray for victims of human trafficking at services this Sunday.
Freedom Sunday, a global day of prayer, action and worship backed by major Christian denominations in Britain, takes place on October 19.
Organisers have produced a set of resources for churches with prayers, Bible studies, reflections, case studies and sermon notes to help mark the day.
In a foreword to the resources, the Archbishop of Canterbury, the Most Revd Justin Welby, warns that human trafficking is a “grave crime” against humanity.
“It is a form of modern day slavery and a profound violation of the intrinsic dignity of human beings,” he wrote.
“It is intolerable that millions of fellow human beings should be violated in this way, subjected to inhuman exploitation and deprived of their dignity and rights.”